
Quiz de Física
Quiz
•
Physics
•
1st Grade
•
Medium
JESSICA ROMANCINI
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Num experimento, um professor de física resfria uma placa de vidro (c = 0,2 cal/g.ºC ) de massa 800 g, de 70 °C para −20 °C. Qual é a quantidade de calor cedida pelo vidro para o ambiente?
14.400 cal
14.000 cal
16.000 cal
20.000 cal
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2 litros de água no sistema de arrefecimento de um automóvel estão a 20 °C. Após alguns quilômetros, a ventoinha é acionada a 90 °C. Qual é a quantidade de calor absorvida pela água?
140.000 cal
120.000 cal
160.000 cal
180.000 cal
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é o coeficiente de calor latente de 500 g de uma substância que recebe 100.000 cal para mudar de fase?
200 cal/g
150 cal/g
250 cal/g
300 cal/g
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é o coeficiente de calor latente de 5 kg de uma substância que recebe 1.000.000 cal para mudar de fase?
200 cal/g
80 cal/g
120 cal/g
150 cal/g
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um bloco de ferro de 2 kg é aquecido de 25 °C para 75 °C. Se o calor específico do ferro é 0,11 cal/g.ºC, qual é a quantidade de calor absorvida pelo bloco?
11.000 cal
12.000 cal
13.000 cal
14.000 cal
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Transformando a temperatura de 25 ºC para a escala Fahrenheit e, em seguida, convertendo-a para escala Kelvin, quais as temperaturas registradas nas respectivas escalas?
25 ºC
50 ºF
e 150 K.
25 ºC
88 ºF
e 136 K.
25 ºC
77 ºF
e 298 K.
25 ºC
36 ºF
e 194 K.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Transformando a temperatura de 100 ºC para a escala Fahrenheit e, em seguida, convertendo-a para escala Kelvin, quais as temperaturas registradas nas respectivas escalas?
100 ºC
212 ºF
e 373 K.
100 ºC
180 ºF
e 373 K.
100 ºC
200 ºF
e 373,15 K.
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